What Are Ghost Burrs? Everything You Need To Know

There are many kinds of coffee grinders, each having its own unique perks. And the grinding these different machines do is also different from each other. The use of the ground coffee is different as well. So knowing and choosing the right kind of grinder may be tough. 

So what are ghost burrs?

Ghost burrs are a special kind of flat burr, a special type of burr grinder. Burr grinders are better at grinding than blade grinders, and ghost grinder retains most of these characteristics. Ghost grinder can make better-tasting coffee but it falls short in terms of grinding fine enough for espresso. 

This just offers a shallow view of the vast topic that is ghost burrs and burr grinders in general. Everything you need to know can be found in this article. 

About Burr Grinders

Burr Grinders

Burr grinders and blade grinders are the two types of coffee grinders that are used the most often.

Ingredients such as coffee beans and spices can be simultaneously chopped and blended with the use of a blade grinder. The grinder has a center blade that resembles a propeller and it is the main component of the grinding process. It is very similar to the blade that one would find in a blender.

In a burr grinder coffee is ground by passing it between two spinning burrs in the machine. Burr grinders are sometimes referred to as burr mills. 

In a burr grinder, the beans are processed with the help of a rotating grinding wheel. The wheel is supported by a base that is kept stable.

Burr grinders provide a level of precision that is unmatched by blade grinders. Burrs are used to grind coffee by sandwiching two ridged metal discs or plates between one another.

So what are burrs? Burrs are the common name for these discs or plates!

You are able to make fine and gradual adjustments with the help of burr grinders. However, most blade grinders do not have this feature. 

The user has a lot more control over the grind size they pick because of this feature. This directly results in a higher probability of extracting the flavors from their ground coffee. Particularly in a method that is even and consistent.

Thus, some of the best espresso grinders are burr grinders!

The size of the grind may be adjusted by changing the distance between the two burrs. The grain will be ground to a finer consistency if the burrs are closer together, and vice versa.

What is The Purpose of Burrs in Espresso?

The ability to produce particles of a consistent size is the primary benefit of using a burr coffee grinder. This not only produces a tastier cup of coffee, but it also prevents issues with clogging.

The ability to grind beans to varying degrees of coarseness or fineness is another benefit of using burrs. You’re able to modify it to work best with the coffee or espresso machine that you are using.

What Are The Different Types of Burr?

Burr grinders may be either conical or flat, depending on their design.

With today’s hand grinders, you’ll often see the utilization of conical burrs. Although makers of high-quality electric grinders often choose the use of flat burrs, conical burrs are another option.

Conical burrs are much more efficient and easier to use. Meanwhile, flat burrs offer a more consistent grind.

Conical Burr Grinders:

Conical burrs are considered the gold standard of burr grinders. They employ a burr that is cone-shaped in the middle and has another burr that is serrated on the outside. This aids in the consistent creation of freshly ground coffee.

Grinders with conical burrs are designed to be inherently efficient in their use of energy and resistant to heat. Because of this, it is an excellent choice for baristas working both professionally and for household use.

Conical burrs, on the other hand, do not create coffee that is ground consistently. And if examined very thoroughly, you’d find varying sizes of beans in the mix. 

A flat burr grinder is preferred by some individuals for making espresso. Despite the fact that this won’t have any effect on the flavor of the coffee you drink overall.

Flat Burr Grinders:

Grinders with flat burrs have two donut-shaped burrs that are positioned opposite one another and have extremely sharp edges. Because of the design of the machine, the beans are able to remain between the burrs longer. 

They remain there until they have been ground up completely (and symmetrically). This prevents the espresso from being uneven, thus preventing espresso from being stuck to the grouphead.

Conical burrs, on the other hand, do not house the coffee beans for that length of a period. They make it possible for the beans to shoot out while still retaining part of their integrity.

The taste is highly one-noted when all of the coffee or espresso grinds are the same size. This may provide baristas with greater opportunities for creative expression.

Nevertheless, flat burrs produce more noise than conical burrs. And they need a greater amount of energy and heat to accomplish the same level of grinding. Because of this, they are less suitable for usage in professional settings or even in the household. 

Nonetheless, flat burrs are preferable when precision is essential. And ghost burrs are a kind of flat burrs. 

About Ghost Burrs

ghost coffee grinder

Standard coffee grinders are constructed with blocks of blades that are responsible for grinding the coffee. The functionality of this technology is fairly comparable to that of spice and herb grinders. And this is what sets “Ghost Burrs” apart from other burr grinders.

A ghost coffee grinder is essentially a flat burr with patterned and notably protruded teeth. This kind of burr is also known as a “ghost” burr. The beans are chopped up into little bits when you use ghost burrs. And, if the burrs are in the correct position, the beans will exit the burrs without any difficulty.

Ghost Burrs vs Flat Burrs:

With standard grinders, the beans keep their space in there while they are being ground. The beans continue to travel for longer and longer distances through standard burrs and through apertures that are becoming smaller. On the other hand, ghost burr grinders just cut the coffee beans before allowing the beans to flow out.

It is possible to refer to Ghost burrs as flat burrs; however, there is one key difference. Ghost burrs are often unable to grind coffee beans to a consistency suitable for espresso. The reason for this is that the teeth are quite large. Moreover, there are fewer cuts made to the beans, and they are not reduced in size enough. Problems like these can turn espresso too acidic.

With ghost burrs, the blade bases have to maintain a significant distance from one another. Hence, they are unable to generate coffee grounds that are fine enough for making a nice espresso.

To sum up: 

AspectsGhost BurrsFlat Burrs
Type of grindCoarseAdjustable between fine and coarse
Grind sizeLargerSmaller
Ground beans extractionNaturally and quicklyTakes longer to fall out

What Are Ghost Burrs Used For?

Ghost Burrs are unusual in that they are flat and have projections that resemble teeth. These are what you’ll need to smash the beans with.

When it comes to producing a coarser grind, ghost grinders truly shine. Yet, they are not capable of grinding finely enough to make espresso. A coarse grind is comparable in texture to that of kosher salt and is a little bit finer than an extra coarse grind.

Ghost burr grinders are the most effective tools for preparing coffee for brewing techniques such as french presses, percolators, and coffee cups.

Ghost burr grinders provide a grind size that is both constant and accurate. This is very necessary for brewing techniques that need a very particular grind size. French press and the percolator are prime examples of coffees suitable for making using ghost burrs. 

The uniform extraction is further helped to be ensured by the constant grind size. This results in a cup of coffee that has a superior flavor overall.

Recommended Ghost Burrs: 

The market is not saturated with ghost burr grinders, that is true. But there are still quite a few solid options that are available. We will show you our choices for the premium segment as well as our favorite value option. 

Premium Choice: Fuji Royal

Fuji Royal is the original when it comes to ghost burr grinders. The Fuji Royal R220 is one of their more popular options and it has burrs made from cast steel. This makes the grinder much heavier. And gives it a premium feel that is worthy of the price. 

The motor of the Fuji Royal is the 220-watt motor. And this motor can produce numbers higher than 3500 RPM. 

Real-life use of the Fuji Royal demonstrates that this grinder is able to produce finer coffee than most ghost grinders. The grinder also extracts more coffee than most grinds of this type. 

Coffee made with the help of Fuji Royal has a much cleaner pallet to it as well. 

The Fuji Royal has a price tag of around $900. But it has the features and quality to justify its premium price. 

Any coffee enthusiast will not be disappointed with the Fuji Royal.

Value Choice: Xeoleo

The Xeoleo hand grinder is a very popular option available in the market. It is popular for the value it offers. 

The burrs of Xeoleo are machined. Meaning they are much shinier than cast steel. This is very comparable to other ghost burr grinders. 

The motor of the Xeoleo is a 200-watt motor. And it rotates at 3300 RPM.

Just like any ghost burr grinder, Xeoleo offers a coarse grind. The machine is not suitable for fine grinded coffee such as espresso. 

The Xeoleo is a very standard ghost burr coffee grinder. It has no flashy features, but it does what it is supposed to do. 

The $150 price tag makes it a solid option for anyone looking for a ghost burr grinder. 

Frequently Asked Questions (FAQs):

Can I use coarse grind for espresso?

No, you cannot use coarse grind for espresso. Espresso coffee uses an extremely fine grind to bring out the best in the beans. Espresso made with a coarse grind is weak and under-extracted because the beans were not ground finely enough.

Why a burr grinder is better?

A burr grinder is considered to be better because it drastically improves the taste of the coffee. A burr grinder produces a consistent grind size, while a blade grinder chops the coffee beans into uneven fragments. Consistent grind size is essential for extracting flavors and aromas.

Do burr grinders get dull?

Certainly, burr grinders might become dull over time if they are used often. The sharp edges of the burrs may get dull with time, which can have an adverse effect on the quality of the grind produced by the tool. 


And with that, we know so much more about what are ghost burrs. They are a unique kind of flat burr that specializes in making coarse grinds of coffee beans. 

Ghost burrs are not suited for every user. Our article should help you know if you fall into that certain user base. 

Good luck!